Enkephalin, Pro (PENK, AI326464, ENK, Penk1, PPA, Proenkephalin-A)

May be stored at 4 °C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 °C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.